This is probably very smple, but I can't seem to find the obvious solution.

I have several roof peaks that are outlined with pixel strings. Pretty common I would think.

From the road, facing the house, the peaks are shaped like an upside-down V .
I have one continuous string that starts on the bottom left, goes up at an angle to the peak, and then continues down at an angle to the lower right.
The drawing tools in Layout don't seem to let me draw this as one string. I can draw it as two strings, but its not two strings, its one continuous string with the middle of the string at the peak.
How do I create this as one model? I realize I could and break it into two half-strings and then put them in a group model. But I would think this is a common element (roof peaks) in many layouts so I'm hoping there is a way to do this as a single model and not a group.